WO2015051519A1 - Enceinte à inversion de phase de rayonnement - Google Patents

Enceinte à inversion de phase de rayonnement Download PDF

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Publication number
WO2015051519A1
WO2015051519A1 PCT/CN2013/084982 CN2013084982W WO2015051519A1 WO 2015051519 A1 WO2015051519 A1 WO 2015051519A1 CN 2013084982 W CN2013084982 W CN 2013084982W WO 2015051519 A1 WO2015051519 A1 WO 2015051519A1
Authority
WO
WIPO (PCT)
Prior art keywords
button
radiation
wall
middle frame
basin
Prior art date
Application number
PCT/CN2013/084982
Other languages
English (en)
Chinese (zh)
Inventor
王泽海
刘艳林
Original Assignee
深圳雷柏科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳雷柏科技股份有限公司 filed Critical 深圳雷柏科技股份有限公司
Priority to PCT/CN2013/084982 priority Critical patent/WO2015051519A1/fr
Publication of WO2015051519A1 publication Critical patent/WO2015051519A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
    • H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers

Definitions

  • the invention relates to the technical field of household appliances, and in particular to a radiation inverted speaker.
  • the diaphragm will move back and forth to push the air, and then the vibration will be transmitted to the human ear, so that people can hear the sound.
  • the process will be accompanied by additional vibration, that is, the air inside the speaker.
  • the interference causes the resonance frequency to rise, the transient response to deteriorate, and the harmonic distortion to increase.
  • the conventional inverted speaker structure is used to overcome the above disadvantages, that is, the diaphragm of the speaker is exposed to the outside to sound, and the vibration of the diaphragm to the rear is guided to the front by the inverter tube, and the vibration of the speaker to the rear is also utilized. When you get it, it will strengthen the sound waves and increase the bass effect.
  • the design of the inverted tube structure is relatively complicated, and the volume of the speaker needs to be greatly increased.
  • the current technology is limited by the structure of the speaker, so that the sound wave to the rear cannot be fully utilized; the low frequency in the speaker cannot be generated in the speaker.
  • the resonance required by the design, the mid-bass radiation efficiency is not high, so that the midrange is not full enough, the bass is also weak.
  • the object of the present invention is to provide a simple structure, which only needs to increase the volume of the speaker in a small amount, and can fully utilize the sound wave emitted from the diaphragm to the rear, so that the middle and low frequency of the speaker can generate the resonance required by the design in the speaker, and the mid-bass radiation High efficiency, full midrange, powerful bass; simple and reasonable structure, low distortion and good audio effect.
  • the present invention is achieved by the following technical solutions.
  • a radiation inverted speaker comprising a middle frame, a radiation basin is arranged inside the middle frame, and a radiation basin is arranged in the middle frame Divided into two chambers before and after, the front chamber is provided with a horn, and the latter chamber is a closed chamber provided with a vent hole on a wall other than the front wall.
  • the air hole is disposed in a wall of the latter chamber other than the front wall and except the rear wall.
  • the front end of the air hole is spaced apart from the radiation basin by a certain distance in the horizontal direction; the upper end of the radiation basin is spaced apart from the air hole by a certain distance in the vertical direction.
  • the outer frame is further disposed, and the middle frame is disposed inside the outer frame; and the wall of the outer frame is provided with a gap between the wall of the outer frame and the wall of the air hole.
  • the other wall of the middle frame is tightly fitted with the wall of the outer frame.
  • the outer frame of the aluminum is further disposed, the air hole is disposed on the upper wall of the rear chamber; the upper wall of the outer frame and the upper wall of the middle frame are provided with a gap, and the other wall of the outer frame is middle and middle The other walls of the frame are tightly fitted.
  • the inner wall of the middle frame is provided with a dividing wall, the dividing wall is provided with a radiation basin mounting hole, and the radiation basin is located at the radiation basin mounting hole; the dividing wall and the radiation basin divide the middle frame into two chambers before and after.
  • the utility model further comprises a rear cover, a rear cover sealing ring, a front plate and a front plate sealing ring;
  • the rear cover is a rear wall of the rear chamber, and a rear cover sealing ring is arranged between the rear cover and the middle frame;
  • the front plate is the previous one
  • a front plate sealing ring is disposed between the front plate and the middle frame of the front wall of the chamber.
  • the button PCBA, the button assembly position, the button EVA and the button are arranged, the button assembly position is set on the upper wall of the middle frame; the button PCBA is provided with the button control bit, the button PCBA is located in the front chamber; the button assembly position is set to pass The button is provided with a cylinder; after the button and the button assembly position are assembled, the cylinder passes through the through hole, and the end of the cylinder approaches or abuts the button control position; the button EVA surrounds the button control position, and the button EVA is elastically crimped to the button Between the inner wall of the assembly position and the button PCBA.
  • the method further includes a spring
  • the button assembly position is provided with a second ring internally nesting the first annular blind hole a blind hole, the first annular blind hole surrounds the outer side of the through hole;
  • the lower part of the button is provided with a third annular blind hole, and the third annular blind hole surrounds the column; after the button and the button assembly position are assembled, the spring sleeve is first The inner ring wall of the annular blind hole and the outer side of the cylinder, the second annular blind hole cooperates with the ring wall of the third annular blind hole; the spring is elastically crimped between the button assembly position and the button.
  • a radiant inverted speaker comprising a middle frame, wherein the middle frame is provided with a radiation basin, and the radiation basin divides the middle frame into two chambers before and after, and the front chamber is provided with a horn, and the latter
  • the chamber is a closed chamber in which a wind hole is provided on a wall other than the front wall.
  • the radiation basin fully absorbs and utilizes the vibration of the diaphragm to propagate backward, generates vibration and radiates sound waves;
  • the radiation basin, the space behind the radiation basin, the wall of the latter chamber, and the air hole constitute an inverted channel;
  • the sound wave is a fluid
  • the sound wave is a fluid
  • the audio and the natural frequency of the speaker are buffered and corrected.
  • the mid-bass radiation efficiency is high.
  • the medium and low frequency is easy to generate the resonance required by the design in the speaker.
  • the midrange is full and the bass is powerful.
  • the structure is simple and reasonable, the distortion is low, and the audio effect is good.
  • FIG. 1 is a schematic exploded view showing the structure of a radiant inverter type speaker of the present invention.
  • FIG. 2 is a schematic structural view of a middle frame of a radiation inverted speaker according to the present invention.
  • FIG. 3 is a schematic structural view of a button PCBA and a button EVA of a radiation inverted speaker according to the present invention.
  • 4 is a top plan view of a radiant inverter type speaker of the present invention.
  • Figure 5 is a cross-sectional view taken along line A-A of Figure 4 of a radiant inverter cabinet of the present invention.
  • Figure 6 is a cross-sectional view taken along line B-B of Figure 4 of a radiant inverter type speaker of the present invention.
  • the present invention provides a radiant inverter type speaker, in order to make the present invention more clearly understood by those skilled in the art, and the above objects, features and advantages of the present invention can be more clearly understood and understood.
  • the invention will be described in detail with reference to Figures 1 to 6 and the detailed description.
  • a radiation inverted speaker comprising a middle frame 1, an inner partition wall 6 of the middle frame 1, a partition wall 6 provided with a radiation basin mounting hole 7, a radiation basin mounting hole 7 for mounting a radiation basin 2; a dividing wall 6 and a radiation basin 2 Divide the middle frame 1 into two chambers before and after.
  • a horn 3 is provided in the former chamber; a vent hole 4 is provided in the upper wall of the latter chamber.
  • the radiation basin 2 fully absorbs and utilizes the vibration of the diaphragm of the horn 3 to propagate backward, generates vibration and radiates sound waves;
  • the radiation basin 2, the space behind the radiation basin 2, the wall of the latter chamber, and the air hole 4 constitute a Inverted channel;
  • Acoustic wave is the path through which the fluid follows the shortest (minimum resistance) path; therefore, the sound wave radiated by the radiation basin 2 passes through the inverted channel, passes through the wind 4 hole, and is superimposed with the front sound wave, making the speaker radiant energy
  • the loss is small, it is not easy to generate the internal standing wave of the speaker; at the same time, the natural frequency of the audio and the speaker can be buffered and corrected; the middle and low frequency radiation efficiency is high, the middle and low frequency is easy to generate the resonance required by the design in the speaker, the middle sound is full, the bass is powerful; Simple and reasonable, low distortion and good audio performance.
  • the air holes 4 may also be provided in other walls of the latter chamber other than the rear wall.
  • the front end of the air hole 4 is spaced apart from the radiation pot 2 by a certain distance in the horizontal direction; the upper end of the radiation pot 2 is spaced apart from the air hole 4 by a certain distance in the vertical direction; to obtain the required size of the inverted phase channel, thereby meeting the design requirements of the speaker , buffer and correct the audio and speaker natural frequencies.
  • an outer frame 5 made of aluminum is further provided, and a gap is provided between the upper wall of the outer frame 5 and the upper wall of the middle frame 1.
  • the other wall of the outer frame 5 is tightly attached to the other walls of the middle frame 1.
  • the rear cover 8, the rear cover sealing ring 9, the front plate 10 and the front plate sealing ring 11 are further included; the rear cover 8 is the rear wall of the rear chamber, and the rear cover 8 is disposed between the rear frame 8 and the middle frame 1
  • the cover seal 9; the front plate 10 is the front wall of the front chamber, and the front plate seal 11 is disposed between the front plate 10 and the middle frame.
  • the button PCBA12, the button assembly position 13, the button EVA14 and the button 15 are further included, and the button assembly position 13 is disposed on the upper wall of the middle frame 1; the button PCBA12 is provided with the button control bit 16, and the button PCBA12 is located in the previous chamber.
  • the button assembly position 13 is provided with a through hole 17; the button 15 is provided with a column 18; after the button 15 is assembled with the button assembly position 13, the column 18 passes through the through hole 17, and the end of the column 18 approaches or abuts the button control Bit 16; button EVA14 surrounds button control position 16, and button EVA14 is resiliently crimped between the inner wall of button assembly position 13 and button PCBA12.
  • the button 15 is connected to the button control bit 16 through the cylinder 18, and the button EVA14 separates the column 18 of the external button 15 from the other space in the middle frame 1, thereby realizing the extraction of the button control position 16 and obtaining a good seal.
  • the enclosed space, the speaker will not break the sound during the pronunciation process, effectively improving the sound quality of the speaker.
  • the spring 19 is further provided, and the button assembly position 13 is provided with a second annular blind hole 21 internally nesting the first annular blind hole 20, the first annular blind hole 20 surrounding the outside of the through hole 17;
  • the lower portion is provided with a third annular blind hole 22, and the third annular blind hole 22 surrounds the cylinder 18; after the button 15 is assembled with the button assembly position 13, the spring 19 is sleeved on the inner annular wall of the first annular blind hole 20 and the cylinder 18 On the outer side, the second annular blind hole 21 is engaged with the ring wall of the third annular blind hole 22; the spring 19 is elastically crimped between the button mounting position 13 and the button 15.
  • the spring 19 can maintain the tension of the button 15 so that the button 15 is not affected by the vibration during the sounding of the speaker, which acts to isolate the vibration and improve the sound quality of the speaker.

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

L'invention concerne une enceinte à inversion de phase de rayonnement comprenant un châssis intermédiaire (1), un bassin de rayonnement (2) étant disposé à l'intérieur du châssis intermédiaire (1) et le bassin de rayonnement (2) séparant le châssis intermédiaire (1) en une chambre avant et une chambre arrière. L'intérieur de la chambre avant est doté d'un haut-parleur (3) et la chambre arrière est une chambre fermée dotée d'un trou d'air (4) sur un corps de paroi différent d'une paroi avant de la chambre arrière. Le bassin de rayonnement (2) absorbe et utilise entièrement les vibrations propagées vers l'arrière par un diaphragme vibrant pour produire des vibrations et rayonner une onde sonore ; le bassin de rayonnement (2), l'espace situé derrière le bassin de rayonnement (2), un corps de paroi de la chambre arrière et le trou d'air (4) forment un canal d'inversion de phase ; l'onde sonore fait qu'un fluide transfère une propriété sous pression suivant le trajet le plus court ; par conséquent, l'onde sonore rayonnée par le bassin de rayonnement (2) peut traverser le canal d'inversion de phase et sortir par le trou d'air (4) pour se superposer à une onde sonore située sur le devant de celui-ci, et la perte d'énergie de rayonnement dans les basses est faible, de sorte qu'aucune onde stationnaire ne pourra siéger facilement dans l'enceinte ; en même temps, la fréquence audio et la fréquence naturelle de l'enceinte peuvent être amorties et modifiées, et l'efficacité du rayonnement des altos et des basses est élevée, avec des altos forts et des basses puissantes ; et la structure est simple et d'une conception rationnelle, les distorsions sont faibles et l'effet audio de bonne qualité.
PCT/CN2013/084982 2013-10-10 2013-10-10 Enceinte à inversion de phase de rayonnement WO2015051519A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/084982 WO2015051519A1 (fr) 2013-10-10 2013-10-10 Enceinte à inversion de phase de rayonnement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/084982 WO2015051519A1 (fr) 2013-10-10 2013-10-10 Enceinte à inversion de phase de rayonnement

Publications (1)

Publication Number Publication Date
WO2015051519A1 true WO2015051519A1 (fr) 2015-04-16

Family

ID=52812441

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/084982 WO2015051519A1 (fr) 2013-10-10 2013-10-10 Enceinte à inversion de phase de rayonnement

Country Status (1)

Country Link
WO (1) WO2015051519A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019014099A1 (fr) * 2017-07-10 2019-01-17 Bose Corporation Haut-parleur portable
CN110944273A (zh) * 2019-12-26 2020-03-31 中国华录集团有限公司 一种贯穿式倒相管和音箱

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5189706A (en) * 1989-01-23 1993-02-23 Yamaha Corporation Acoustic apparatus
US5523524A (en) * 1993-12-24 1996-06-04 Nokia Technology Gmbh Double chamber bass reflex box
CN201004388Y (zh) * 2006-12-31 2008-01-09 东莞太洋橡塑制品有限公司 弹性按键开关
JP3154917U (ja) * 2009-08-19 2009-10-29 倉司 河邉 バスレフ型スピーカー用ダクト
CN201608847U (zh) * 2010-03-25 2010-10-13 旺兴达（丰顺）电子有限公司 一种减缓内腔气流的音箱结构
CN201947414U (zh) * 2010-12-31 2011-08-24 深圳市今夜星辰影音器材有限公司 一种反射音箱
CN202587348U (zh) * 2012-04-14 2012-12-05 刘洪波 音箱
CN202889600U (zh) * 2012-09-29 2013-04-17 深圳市奥尼电子工业有限公司 一种具有全频输出及低音共振输出功能的多媒体音响

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5189706A (en) * 1989-01-23 1993-02-23 Yamaha Corporation Acoustic apparatus
US5523524A (en) * 1993-12-24 1996-06-04 Nokia Technology Gmbh Double chamber bass reflex box
CN201004388Y (zh) * 2006-12-31 2008-01-09 东莞太洋橡塑制品有限公司 弹性按键开关
JP3154917U (ja) * 2009-08-19 2009-10-29 倉司 河邉 バスレフ型スピーカー用ダクト
CN201608847U (zh) * 2010-03-25 2010-10-13 旺兴达（丰顺）电子有限公司 一种减缓内腔气流的音箱结构
CN201947414U (zh) * 2010-12-31 2011-08-24 深圳市今夜星辰影音器材有限公司 一种反射音箱
CN202587348U (zh) * 2012-04-14 2012-12-05 刘洪波 音箱
CN202889600U (zh) * 2012-09-29 2013-04-17 深圳市奥尼电子工业有限公司 一种具有全频输出及低音共振输出功能的多媒体音响

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019014099A1 (fr) * 2017-07-10 2019-01-17 Bose Corporation Haut-parleur portable
CN110870324A (zh) * 2017-07-10 2020-03-06 伯斯有限公司 便携式扬声器
CN110870324B (zh) * 2017-07-10 2023-10-27 伯斯有限公司 便携式扬声器
CN110944273A (zh) * 2019-12-26 2020-03-31 中国华录集团有限公司 一种贯穿式倒相管和音箱

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